Well I mean, the horde leader literally can create endless amounts of troops, with the combined might of suramar and silvermoon they destroy the alliance in magic, the zandalari navy is at equal or probably superior to the kul tirians (speculation obviously). That alone makes them quite a superpower... infact its almost like the roles have reversed where the alliance are now basically just a bunch of refugees hanging out with humans and dwarves. Perhaps you should reconsider your position on the matter